Table 3.

Nerve conduction measures (mean ± SD) and coefficients of variation by obesity status

	Obese (n = 16)		Overweight (n = 23)		Normal weight (n = 19)
Parameter	Mean ± SD	CV	Mean ± SD	CV	Mean ± SD	CV	p-value†
CMAP amplitude (mV)
Ankle	3.20 ± 1.7	4.77%	3.42 ± 2.0	3.74%	3.74 ± 1.6	2.62%	0.78
Popliteal Fossa	2.97 ± 1.3	6.88%	2.88 ± 1.6	3.33%	3.15 ± 1.4	3.20%	0.49
Fibular Head	2.98 ± 1.3	4.56%	3.04 ± 1.7	3.01%	3.24 ± 1.4	2.54%	0.67
NCV (m/s)
Popliteal Fossa	43.3 ± 2.6	1.81%	42.2 ± 3.8	2.02%	40.7 ± 2.6	2.55%	0.29
Fibular Head	42.5 ± 2.7	2.60%	42.8 ± 5.4	3.28%	41.6 ± 3.2	2.08%	0.90

NC = nerve conduction; SD = standard deviation; CV = coefficient of variation; CMAP = compound muscle action potential; NCV = nerve conduction velocity;

^†p-value for CV trend; no significant pairwise comparisons for CV